摘要
实生梅个体间花期早晚差异很大,群体花期长达1个月左右。约有65.00％～70.00％的个体在2月下旬中期到3月上旬初期开花。花期平均气温7.6℃左右,基本适合授粉受精要求。梅花器退化严重,退化花平均在43.00％以上,其比率因花期,果枝类型、年份、树龄。树势和管理水平而不周。花器对低温忍受力早花型为最强,晚花型较弱。在-3～-5℃条件下4h都会遭到不同程度的冻害。着桌率与花后3～4d内的平均降水量有稳定的相关,是可靠的着果率气候指标。少雨年份着果率与花后3～4d内的平均日照数关系密切。人工授粉可极显著地提高着果率。梅有2次落花落果高峰,分别在花后20d和35～40d,4月上旬后一般再脱落。
Individual flowers of seedling-mumeplant begin flowering at different times, but the flowering period of group for this plant lasts about one month. 65.00%-70.00% of individual trees flower between the midst of last 10 days of February and the early part of the first 10 days of March, during which the average temperature is about 7.6℃ which is suited for pollination and fertilization. The floral organ of mumeolant deteriorates severely and the number of deteriorated flowers, which account for 43.00% or more on the average, varies with flowering period, types of fruit branches, different years, ages of trees, vigor of trees and level of management. The early flowering floral organ is more tolerant of low temperature than that of the late flowering one, but both are damaged to varying degrees within 4 hours under the condition of -3--5℃. The fruit set is in stable correlation to the average rainfall within 3 days after flowering, which is an important meteorological factor affecting fruit set. Assistant pollination can create significantly an increase in fruit set. 2 fruit-drop peaks are existed within 20 days and 35-40 days after flowering, and there is no more after the first 10 days of April.
出处
《浙江林学院学报》
CSCD
1992年第1期6-13,共8页
Journal of Zhejiang Forestry College
关键词
实生梅
花器退化
开花
着果率
seedling-mumeplant [Prunus mume (Sieb.) Sieb. et Zucc.]
dete-rioration of floral organ
fruit set
meteorological condition during flow-ering period
